/* * Copyright 2010 Jeff Garzik * Copyright 2012-2017 pooler * * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License as published by the Free * Software Foundation; either version 2 of the License, or (at your option) * any later version. See COPYING for more details. */ #include "cpuminer-config.h" #define _GNU_SOURCE #include #include #include #include #include #include #include #include #ifdef WIN32 #include #else #include #include #include #if HAVE_SYS_SYSCTL_H #include #if HAVE_SYS_PARAM_H #include #endif #include #endif #endif #include #include #include "compat.h" #include "miner.h" #define PROGRAM_NAME "minerd" #define LP_SCANTIME 60 #ifdef __linux /* Linux specific policy and affinity management */ #include static inline void drop_policy(void) { struct sched_param param; param.sched_priority = 0; #ifdef SCHED_IDLE if (unlikely(sched_setscheduler(0, SCHED_IDLE, ¶m) == -1)) #endif #ifdef SCHED_BATCH sched_setscheduler(0, SCHED_BATCH, ¶m); #endif } static inline void affine_to_cpu(int id, int cpu) { cpu_set_t set; CPU_ZERO(&set); CPU_SET(cpu, &set); sched_setaffinity(0, sizeof(set), &set); } #elif defined(__FreeBSD__) /* FreeBSD specific policy and affinity management */ #include static inline void drop_policy(void) { } static inline void affine_to_cpu(int id, int cpu) { cpuset_t set; CPU_ZERO(&set); CPU_SET(cpu, &set); cpuset_setaffinity(CPU_LEVEL_WHICH, CPU_WHICH_TID, -1, sizeof(cpuset_t), &set); } #else static inline void drop_policy(void) { } static inline void affine_to_cpu(int id, int cpu) { } #endif enum workio_commands { WC_GET_WORK, WC_SUBMIT_WORK, }; struct workio_cmd { enum workio_commands cmd; struct thr_info *thr; union { struct work *work; } u; }; enum algos { ALGO_SCRYPT, /* scrypt(1024,1,1) */ ALGO_SHA256D, /* SHA-256d */ }; static const char *algo_names[] = { [ALGO_SCRYPT] = "scrypt", [ALGO_SHA256D] = "sha256d", }; bool opt_debug = false; bool opt_protocol = false; static bool opt_benchmark = false; bool opt_redirect = true; bool want_longpoll = true; bool have_longpoll = false; bool have_gbt = true; bool allow_getwork = true; bool want_stratum = true; bool have_stratum = false; bool use_syslog = false; static bool opt_background = false; static bool opt_quiet = false; static int opt_retries = -1; static int opt_fail_pause = 30; int opt_timeout = 0; static int opt_scantime = 5; static enum algos opt_algo = ALGO_SCRYPT; static int opt_scrypt_n = 1024; static int opt_n_threads; static int num_processors; static char *rpc_url; static char *rpc_userpass; static char *rpc_user, *rpc_pass; static int pk_script_size; static unsigned char pk_script[42]; static char coinbase_sig[101] = ""; char *opt_cert; char *opt_proxy; long opt_proxy_type; struct thr_info *thr_info; static int work_thr_id; int longpoll_thr_id = -1; int stratum_thr_id = -1; struct work_restart *work_restart = NULL; static struct stratum_ctx stratum; pthread_mutex_t applog_lock; static pthread_mutex_t stats_lock; static unsigned long accepted_count = 0L; static unsigned long rejected_count = 0L; static double *thr_hashrates; #ifdef HAVE_GETOPT_LONG #include #else struct option { const char *name; int has_arg; int *flag; int val; }; #endif static char const usage[] = "\ Usage: " PROGRAM_NAME " [OPTIONS]\n\ Options:\n\ -a, --algo=ALGO specify the algorithm to use\n\ scrypt scrypt(1024, 1, 1) (default)\n\ scrypt:N scrypt(N, 1, 1)\n\ sha256d SHA-256d\n\ -o, --url=URL URL of mining server\n\ -O, --userpass=U:P username:password pair for mining server\n\ -u, --user=USERNAME username for mining server\n\ -p, --pass=PASSWORD password for mining server\n\ --cert=FILE certificate for mining server using SSL\n\ -x, --proxy=[PROTOCOL://]HOST[:PORT] connect through a proxy\n\ -t, --threads=N number of miner threads (default: number of processors)\n\ -r, --retries=N number of times to retry if a network call fails\n\ (default: retry indefinitely)\n\ -R, --retry-pause=N time to pause between retries, in seconds (default: 30)\n\ -T, --timeout=N timeout for long polling, in seconds (default: none)\n\ -s, --scantime=N upper bound on time spent scanning current work when\n\ long polling is unavailable, in seconds (default: 5)\n\ --coinbase-addr=ADDR payout address for solo mining\n\ --coinbase-sig=TEXT data to insert in the coinbase when possible\n\ --no-longpoll disable long polling support\n\ --no-getwork disable getwork support\n\ --no-gbt disable getblocktemplate support\n\ --no-stratum disable X-Stratum support\n\ --no-redirect ignore requests to change the URL of the mining server\n\ -q, --quiet disable per-thread hashmeter output\n\ -D, --debug enable debug output\n\ -P, --protocol-dump verbose dump of protocol-level activities\n" #ifdef HAVE_SYSLOG_H "\ -S, --syslog use system log for output messages\n" #endif #ifndef WIN32 "\ -B, --background run the miner in the background\n" #endif "\ --benchmark run in offline benchmark mode\n\ -c, --config=FILE load a JSON-format configuration file\n\ -V, --version display version information and exit\n\ -h, --help display this help text and exit\n\ "; static char const short_options[] = #ifndef WIN32 "B" #endif #ifdef HAVE_SYSLOG_H "S" #endif "a:c:Dhp:Px:qr:R:s:t:T:o:u:O:V"; static struct option const options[] = { { "algo", 1, NULL, 'a' }, #ifndef WIN32 { "background", 0, NULL, 'B' }, #endif { "benchmark", 0, NULL, 1005 }, { "cert", 1, NULL, 1001 }, { "coinbase-addr", 1, NULL, 1013 }, { "coinbase-sig", 1, NULL, 1015 }, { "config", 1, NULL, 'c' }, { "debug", 0, NULL, 'D' }, { "help", 0, NULL, 'h' }, { "no-gbt", 0, NULL, 1011 }, { "no-getwork", 0, NULL, 1010 }, { "no-longpoll", 0, NULL, 1003 }, { "no-redirect", 0, NULL, 1009 }, { "no-stratum", 0, NULL, 1007 }, { "pass", 1, NULL, 'p' }, { "protocol-dump", 0, NULL, 'P' }, { "proxy", 1, NULL, 'x' }, { "quiet", 0, NULL, 'q' }, { "retries", 1, NULL, 'r' }, { "retry-pause", 1, NULL, 'R' }, { "scantime", 1, NULL, 's' }, #ifdef HAVE_SYSLOG_H { "syslog", 0, NULL, 'S' }, #endif { "threads", 1, NULL, 't' }, { "timeout", 1, NULL, 'T' }, { "url", 1, NULL, 'o' }, { "user", 1, NULL, 'u' }, { "userpass", 1, NULL, 'O' }, { "version", 0, NULL, 'V' }, { 0, 0, 0, 0 } }; struct work { uint32_t data[32]; uint32_t target[8]; int height; char *txs; char *workid; char *job_id; size_t xnonce2_len; unsigned char *xnonce2; }; static struct work g_work; static time_t g_work_time; static pthread_mutex_t g_work_lock; static bool submit_old = false; static char *lp_id; static inline void work_free(struct work *w) { free(w->txs); free(w->workid); free(w->job_id); free(w->xnonce2); } static inline void work_copy(struct work *dest, const struct work *src) { memcpy(dest, src, sizeof(struct work)); if (src->txs) dest->txs = strdup(src->txs); if (src->workid) dest->workid = strdup(src->workid); if (src->job_id) dest->job_id = strdup(src->job_id); if (src->xnonce2) { dest->xnonce2 = malloc(src->xnonce2_len); memcpy(dest->xnonce2, src->xnonce2, src->xnonce2_len); } } static bool jobj_binary(const json_t *obj, const char *key, void *buf, size_t buflen) { const char *hexstr; json_t *tmp; tmp = json_object_get(obj, key); if (unlikely(!tmp)) { applog(LOG_ERR, "JSON key '%s' not found", key); return false; } hexstr = json_string_value(tmp); if (unlikely(!hexstr)) { applog(LOG_ERR, "JSON key '%s' is not a string", key); return false; } if (!hex2bin(buf, hexstr, buflen)) return false; return true; } static bool work_decode(const json_t *val, struct work *work) { int i; if (unlikely(!jobj_binary(val, "data", work->data, sizeof(work->data)))) { applog(LOG_ERR, "JSON invalid data"); goto err_out; } if (unlikely(!jobj_binary(val, "target", work->target, sizeof(work->target)))) { applog(LOG_ERR, "JSON invalid target"); goto err_out; } for (i = 0; i < ARRAY_SIZE(work->data); i++) work->data[i] = le32dec(work->data + i); for (i = 0; i < ARRAY_SIZE(work->target); i++) work->target[i] = le32dec(work->target + i); return true; err_out: return false; } static bool gbt_work_decode(const json_t *val, struct work *work) { int i, n; uint32_t version, curtime, bits; uint32_t prevhash[8]; uint32_t target[8]; int cbtx_size; unsigned char *cbtx = NULL; int tx_count, tx_size; unsigned char txc_vi[9]; unsigned char (*merkle_tree)[32] = NULL; bool coinbase_append = false; bool submit_coinbase = false; bool segwit = false; json_t *tmp, *txa; bool rc = false; tmp = json_object_get(val, "rules"); if (tmp && json_is_array(tmp)) { n = json_array_size(tmp); for (i = 0; i < n; i++) { const char *s = json_string_value(json_array_get(tmp, i)); if (!s) continue; if (!strcmp(s, "segwit") || !strcmp(s, "!segwit")) segwit = true; } } tmp = json_object_get(val, "mutable"); if (tmp && json_is_array(tmp)) { n = json_array_size(tmp); for (i = 0; i < n; i++) { const char *s = json_string_value(json_array_get(tmp, i)); if (!s) continue; if (!strcmp(s, "coinbase/append")) coinbase_append = true; else if (!strcmp(s, "submit/coinbase")) submit_coinbase = true; } } tmp = json_object_get(val, "height"); if (!tmp || !json_is_integer(tmp)) { applog(LOG_ERR, "JSON invalid height"); goto out; } work->height = json_integer_value(tmp); tmp = json_object_get(val, "version"); if (!tmp || !json_is_integer(tmp)) { applog(LOG_ERR, "JSON invalid version"); goto out; } version = json_integer_value(tmp); if (unlikely(!jobj_binary(val, "previousblockhash", prevhash, sizeof(prevhash)))) { applog(LOG_ERR, "JSON invalid previousblockhash"); goto out; } tmp = json_object_get(val, "curtime"); if (!tmp || !json_is_integer(tmp)) { applog(LOG_ERR, "JSON invalid curtime"); goto out; } curtime = json_integer_value(tmp); if (unlikely(!jobj_binary(val, "bits", &bits, sizeof(bits)))) { applog(LOG_ERR, "JSON invalid bits"); goto out; } /* find count and size of transactions */ txa = json_object_get(val, "transactions"); if (!txa || !json_is_array(txa)) { applog(LOG_ERR, "JSON invalid transactions"); goto out; } tx_count = json_array_size(txa); tx_size = 0; for (i = 0; i < tx_count; i++) { const json_t *tx = json_array_get(txa, i); const char *tx_hex = json_string_value(json_object_get(tx, "data")); if (!tx_hex) { applog(LOG_ERR, "JSON invalid transactions"); goto out; } tx_size += strlen(tx_hex) / 2; } /* build coinbase transaction */ tmp = json_object_get(val, "coinbasetxn"); if (tmp) { const char *cbtx_hex = json_string_value(json_object_get(tmp, "data")); cbtx_size = cbtx_hex ? strlen(cbtx_hex) / 2 : 0; cbtx = malloc(cbtx_size + 100); if (cbtx_size < 60 || !hex2bin(cbtx, cbtx_hex, cbtx_size)) { applog(LOG_ERR, "JSON invalid coinbasetxn"); goto out; } } else { int64_t cbvalue; if (!pk_script_size) { if (allow_getwork) { applog(LOG_INFO, "No payout address provided, switching to getwork"); have_gbt = false; } else applog(LOG_ERR, "No payout address provided"); goto out; } tmp = json_object_get(val, "coinbasevalue"); if (!tmp || !json_is_number(tmp)) { applog(LOG_ERR, "JSON invalid coinbasevalue"); goto out; } cbvalue = json_is_integer(tmp) ? json_integer_value(tmp) : json_number_value(tmp); cbtx = malloc(256); le32enc((uint32_t *)cbtx, 1); /* version */ cbtx[4] = 1; /* in-counter */ memset(cbtx+5, 0x00, 32); /* prev txout hash */ le32enc((uint32_t *)(cbtx+37), 0xffffffff); /* prev txout index */ cbtx_size = 43; /* BIP 34: height in coinbase */ if (work->height >= 1 && work->height <= 16) { /* Use OP_1-OP_16 to conform to Bitcoin's implementation. */ cbtx[42] = work->height + 0x50; cbtx[cbtx_size++] = 0x00; /* OP_0; pads to 2 bytes */ } else { for (n = work->height; n; n >>= 8) { cbtx[cbtx_size++] = n & 0xff; if (n < 0x100 && n >= 0x80) cbtx[cbtx_size++] = 0; } cbtx[42] = cbtx_size - 43; } cbtx[41] = cbtx_size - 42; /* scriptsig length */ le32enc((uint32_t *)(cbtx+cbtx_size), 0xffffffff); /* sequence */ cbtx_size += 4; cbtx[cbtx_size++] = segwit ? 2 : 1; /* out-counter */ le32enc((uint32_t *)(cbtx+cbtx_size), (uint32_t)cbvalue); /* value */ le32enc((uint32_t *)(cbtx+cbtx_size+4), cbvalue >> 32); cbtx_size += 8; cbtx[cbtx_size++] = pk_script_size; /* txout-script length */ memcpy(cbtx+cbtx_size, pk_script, pk_script_size); cbtx_size += pk_script_size; if (segwit) { unsigned char (*wtree)[32] = calloc(tx_count + 2, 32); memset(cbtx+cbtx_size, 0, 8); /* value */ cbtx_size += 8; cbtx[cbtx_size++] = 38; /* txout-script length */ cbtx[cbtx_size++] = 0x6a; /* txout-script */ cbtx[cbtx_size++] = 0x24; cbtx[cbtx_size++] = 0xaa; cbtx[cbtx_size++] = 0x21; cbtx[cbtx_size++] = 0xa9; cbtx[cbtx_size++] = 0xed; for (i = 0; i < tx_count; i++) { const json_t *tx = json_array_get(txa, i); const json_t *hash = json_object_get(tx, "hash"); if (!hash || !hex2bin(wtree[1+i], json_string_value(hash), 32)) { applog(LOG_ERR, "JSON invalid transaction hash"); free(wtree); goto out; } memrev(wtree[1+i], 32); } n = tx_count + 1; while (n > 1) { if (n % 2) memcpy(wtree[n], wtree[n-1], 32); n = (n + 1) / 2; for (i = 0; i < n; i++) sha256d(wtree[i], wtree[2*i], 64); } memset(wtree[1], 0, 32); /* witness reserved value = 0 */ sha256d(cbtx+cbtx_size, wtree[0], 64); cbtx_size += 32; free(wtree); } le32enc((uint32_t *)(cbtx+cbtx_size), 0); /* lock time */ cbtx_size += 4; coinbase_append = true; } if (coinbase_append) { unsigned char xsig[100]; int xsig_len = 0; if (*coinbase_sig) { n = strlen(coinbase_sig); if (cbtx[41] + xsig_len + n <= 100) { memcpy(xsig+xsig_len, coinbase_sig, n); xsig_len += n; } else { applog(LOG_WARNING, "Signature does not fit in coinbase, skipping"); } } tmp = json_object_get(val, "coinbaseaux"); if (tmp && json_is_object(tmp)) { void *iter = json_object_iter(tmp); while (iter) { unsigned char buf[100]; const char *s = json_string_value(json_object_iter_value(iter)); n = s ? strlen(s) / 2 : 0; if (!s || n > 100 || !hex2bin(buf, s, n)) { applog(LOG_ERR, "JSON invalid coinbaseaux"); break; } if (cbtx[41] + xsig_len + n <= 100) { memcpy(xsig+xsig_len, buf, n); xsig_len += n; } iter = json_object_iter_next(tmp, iter); } } if (xsig_len) { unsigned char *ssig_end = cbtx + 42 + cbtx[41]; int push_len = cbtx[41] + xsig_len < 76 ? 1 : cbtx[41] + 2 + xsig_len > 100 ? 0 : 2; n = xsig_len + push_len; memmove(ssig_end + n, ssig_end, cbtx_size - 42 - cbtx[41]); cbtx[41] += n; if (push_len == 2) *(ssig_end++) = 0x4c; /* OP_PUSHDATA1 */ if (push_len) *(ssig_end++) = xsig_len; memcpy(ssig_end, xsig, xsig_len); cbtx_size += n; } } n = varint_encode(txc_vi, 1 + tx_count); work->txs = malloc(2 * (n + cbtx_size + tx_size) + 1); bin2hex(work->txs, txc_vi, n); bin2hex(work->txs + 2*n, cbtx, cbtx_size); /* generate merkle root */ merkle_tree = malloc(32 * ((1 + tx_count + 1) & ~1)); sha256d(merkle_tree[0], cbtx, cbtx_size); for (i = 0; i < tx_count; i++) { tmp = json_array_get(txa, i); const char *tx_hex = json_string_value(json_object_get(tmp, "data")); const int tx_size = tx_hex ? strlen(tx_hex) / 2 : 0; if (segwit) { const char *txid = json_string_value(json_object_get(tmp, "txid")); if (!txid || !hex2bin(merkle_tree[1 + i], txid, 32)) { applog(LOG_ERR, "JSON invalid transaction txid"); goto out; } memrev(merkle_tree[1 + i], 32); } else { unsigned char *tx = malloc(tx_size); if (!tx_hex || !hex2bin(tx, tx_hex, tx_size)) { applog(LOG_ERR, "JSON invalid transactions"); free(tx); goto out; } sha256d(merkle_tree[1 + i], tx, tx_size); free(tx); } if (!submit_coinbase) strcat(work->txs, tx_hex); } n = 1 + tx_count; while (n > 1) { if (n % 2) { memcpy(merkle_tree[n], merkle_tree[n-1], 32); ++n; } n /= 2; for (i = 0; i < n; i++) sha256d(merkle_tree[i], merkle_tree[2*i], 64); } /* assemble block header */ work->data[0] = swab32(version); for (i = 0; i < 8; i++) work->data[8 - i] = le32dec(prevhash + i); for (i = 0; i < 8; i++) work->data[9 + i] = be32dec((uint32_t *)merkle_tree[0] + i); work->data[17] = swab32(curtime); work->data[18] = le32dec(&bits); memset(work->data + 19, 0x00, 52); work->data[20] = 0x80000000; work->data[31] = 0x00000280; if (unlikely(!jobj_binary(val, "target", target, sizeof(target)))) { applog(LOG_ERR, "JSON invalid target"); goto out; } for (i = 0; i < ARRAY_SIZE(work->target); i++) work->target[7 - i] = be32dec(target + i); tmp = json_object_get(val, "workid"); if (tmp) { if (!json_is_string(tmp)) { applog(LOG_ERR, "JSON invalid workid"); goto out; } work->workid = strdup(json_string_value(tmp)); } /* Long polling */ tmp = json_object_get(val, "longpollid"); if (want_longpoll && json_is_string(tmp)) { free(lp_id); lp_id = strdup(json_string_value(tmp)); if (!have_longpoll) { char *lp_uri; tmp = json_object_get(val, "longpolluri"); lp_uri = strdup(json_is_string(tmp) ? json_string_value(tmp) : rpc_url); have_longpoll = true; tq_push(thr_info[longpoll_thr_id].q, lp_uri); } } rc = true; out: free(cbtx); free(merkle_tree); return rc; } static void share_result(int result, const char *reason) { char s[345]; double hashrate; int i; hashrate = 0.; pthread_mutex_lock(&stats_lock); for (i = 0; i < opt_n_threads; i++) hashrate += thr_hashrates[i]; result ? accepted_count++ : rejected_count++; pthread_mutex_unlock(&stats_lock); sprintf(s, hashrate >= 1e6 ? "%.0f" : "%.2f", 1e-3 * hashrate); applog(LOG_INFO, "accepted: %lu/%lu (%.2f%%), %s khash/s %s", accepted_count, accepted_count + rejected_count, 100. * accepted_count / (accepted_count + rejected_count), s, result ? "(yay!!!)" : "(booooo)"); if (opt_debug && reason) applog(LOG_DEBUG, "DEBUG: reject reason: %s", reason); } static bool submit_upstream_work(CURL *curl, struct work *work) { json_t *val, *res, *reason; char data_str[2 * sizeof(work->data) + 1]; char s[345]; int i; bool rc = false; /* pass if the previous hash is not the current previous hash */ if (!submit_old && memcmp(work->data + 1, g_work.data + 1, 32)) { if (opt_debug) applog(LOG_DEBUG, "DEBUG: stale work detected, discarding"); return true; } if (have_stratum) { uint32_t ntime, nonce; char ntimestr[9], noncestr[9], *xnonce2str, *req; le32enc(&ntime, work->data[17]); le32enc(&nonce, work->data[19]); bin2hex(ntimestr, (const unsigned char *)(&ntime), 4); bin2hex(noncestr, (const unsigned char *)(&nonce), 4); xnonce2str = abin2hex(work->xnonce2, work->xnonce2_len); req = malloc(256 + strlen(rpc_user) + strlen(work->job_id) + 2 * work->xnonce2_len); sprintf(req, "{\"method\": \"mining.submit\", \"params\": [\"%s\", \"%s\", \"%s\", \"%s\", \"%s\"], \"id\":4}", rpc_user, work->job_id, xnonce2str, ntimestr, noncestr); free(xnonce2str); rc = stratum_send_line(&stratum, req); free(req); if (unlikely(!rc)) { applog(LOG_ERR, "submit_upstream_work stratum_send_line failed"); goto out; } } else if (work->txs) { char *req; for (i = 0; i < ARRAY_SIZE(work->data); i++) be32enc(work->data + i, work->data[i]); bin2hex(data_str, (unsigned char *)work->data, 80); if (work->workid) { char *params; val = json_object(); json_object_set_new(val, "workid", json_string(work->workid)); params = json_dumps(val, 0); json_decref(val); req = malloc(128 + 2*80 + strlen(work->txs) + strlen(params)); sprintf(req, "{\"method\": \"submitblock\", \"params\": [\"%s%s\", %s], \"id\":1}\r\n", data_str, work->txs, params); free(params); } else { req = malloc(128 + 2*80 + strlen(work->txs)); sprintf(req, "{\"method\": \"submitblock\", \"params\": [\"%s%s\"], \"id\":1}\r\n", data_str, work->txs); } val = json_rpc_call(curl, rpc_url, rpc_userpass, req, NULL, 0); free(req); if (unlikely(!val)) { applog(LOG_ERR, "submit_upstream_work json_rpc_call failed"); goto out; } res = json_object_get(val, "result"); if (json_is_object(res)) { char *res_str; bool sumres = false; void *iter = json_object_iter(res); while (iter) { if (json_is_null(json_object_iter_value(iter))) { sumres = true; break; } iter = json_object_iter_next(res, iter); } res_str = json_dumps(res, 0); share_result(sumres, res_str); free(res_str); } else share_result(json_is_null(res), json_string_value(res)); json_decref(val); } else { /* build hex string */ for (i = 0; i < ARRAY_SIZE(work->data); i++) le32enc(work->data + i, work->data[i]); bin2hex(data_str, (unsigned char *)work->data, sizeof(work->data)); /* build JSON-RPC request */ sprintf(s, "{\"method\": \"getwork\", \"params\": [ \"%s\" ], \"id\":1}\r\n", data_str); /* issue JSON-RPC request */ val = json_rpc_call(curl, rpc_url, rpc_userpass, s, NULL, 0); if (unlikely(!val)) { applog(LOG_ERR, "submit_upstream_work json_rpc_call failed"); goto out; } res = json_object_get(val, "result"); reason = json_object_get(val, "reject-reason"); share_result(json_is_true(res), reason ? json_string_value(reason) : NULL); json_decref(val); } rc = true; out: return rc; } static const char *getwork_req = "{\"method\": \"getwork\", \"params\": [], \"id\":0}\r\n"; #define GBT_CAPABILITIES "[\"coinbasetxn\", \"coinbasevalue\", \"longpoll\", \"workid\"]" #define GBT_RULES "[\"segwit\"]" static const char *gbt_req = "{\"method\": \"getblocktemplate\", \"params\": [{\"capabilities\": " GBT_CAPABILITIES ", \"rules\": " GBT_RULES "}], \"id\":0}\r\n"; static const char *gbt_lp_req = "{\"method\": \"getblocktemplate\", \"params\": [{\"capabilities\": " GBT_CAPABILITIES ", \"rules\": " GBT_RULES ", \"longpollid\": \"%s\"}], \"id\":0}\r\n"; static bool get_upstream_work(CURL *curl, struct work *work) { json_t *val; int err; bool rc; struct timeval tv_start, tv_end, diff; start: gettimeofday(&tv_start, NULL); val = json_rpc_call(curl, rpc_url, rpc_userpass, have_gbt ? gbt_req : getwork_req, &err, have_gbt ? JSON_RPC_QUIET_404 : 0); gettimeofday(&tv_end, NULL); if (have_stratum) { if (val) json_decref(val); return true; } if (!have_gbt && !allow_getwork) { applog(LOG_ERR, "No usable protocol"); if (val) json_decref(val); return false; } if (have_gbt && allow_getwork && !val && err == CURLE_OK) { applog(LOG_INFO, "getblocktemplate failed, falling back to getwork"); have_gbt = false; goto start; } if (!val) return false; if (have_gbt) { rc = gbt_work_decode(json_object_get(val, "result"), work); if (!have_gbt) { json_decref(val); goto start; } } else rc = work_decode(json_object_get(val, "result"), work); if (opt_debug && rc) { timeval_subtract(&diff, &tv_end, &tv_start); applog(LOG_DEBUG, "DEBUG: got new work in %d ms", diff.tv_sec * 1000 + diff.tv_usec / 1000); } json_decref(val); return rc; } static void workio_cmd_free(struct workio_cmd *wc) { if (!wc) return; switch (wc->cmd) { case WC_SUBMIT_WORK: work_free(wc->u.work); free(wc->u.work); break; default: /* do nothing */ break; } memset(wc, 0, sizeof(*wc)); /* poison */ free(wc); } static bool workio_get_work(struct workio_cmd *wc, CURL *curl) { struct work *ret_work; int failures = 0; ret_work = calloc(1, sizeof(*ret_work)); if (!ret_work) return false; /* obtain new work from bitcoin via JSON-RPC */ while (!get_upstream_work(curl, ret_work)) { if (unlikely((opt_retries >= 0) && (++failures > opt_retries))) { applog(LOG_ERR, "json_rpc_call failed, terminating workio thread"); free(ret_work); return false; } /* pause, then restart work-request loop */ applog(LOG_ERR, "json_rpc_call failed, retry after %d seconds", opt_fail_pause); sleep(opt_fail_pause); } /* send work to requesting thread */ if (!tq_push(wc->thr->q, ret_work)) free(ret_work); return true; } static bool workio_submit_work(struct workio_cmd *wc, CURL *curl) { int failures = 0; /* submit solution to bitcoin via JSON-RPC */ while (!submit_upstream_work(curl, wc->u.work)) { if (unlikely((opt_retries >= 0) && (++failures > opt_retries))) { applog(LOG_ERR, "...terminating workio thread"); return false; } /* pause, then restart work-request loop */ applog(LOG_ERR, "...retry after %d seconds", opt_fail_pause); sleep(opt_fail_pause); } return true; } static void *workio_thread(void *userdata) { struct thr_info *mythr = userdata; CURL *curl; bool ok = true; curl = curl_easy_init(); if (unlikely(!curl)) { applog(LOG_ERR, "CURL initialization failed"); return NULL; } while (ok) { struct workio_cmd *wc; /* wait for workio_cmd sent to us, on our queue */ wc = tq_pop(mythr->q, NULL); if (!wc) { ok = false; break; } /* process workio_cmd */ switch (wc->cmd) { case WC_GET_WORK: ok = workio_get_work(wc, curl); break; case WC_SUBMIT_WORK: ok = workio_submit_work(wc, curl); break; default: /* should never happen */ ok = false; break; } workio_cmd_free(wc); } tq_freeze(mythr->q); curl_easy_cleanup(curl); return NULL; } static bool get_work(struct thr_info *thr, struct work *work) { struct workio_cmd *wc; struct work *work_heap; if (opt_benchmark) { memset(work->data, 0x55, 76); work->data[17] = swab32(time(NULL)); memset(work->data + 19, 0x00, 52); work->data[20] = 0x80000000; work->data[31] = 0x00000280; memset(work->target, 0x00, sizeof(work->target)); return true; } /* fill out work request message */ wc = calloc(1, sizeof(*wc)); if (!wc) return false; wc->cmd = WC_GET_WORK; wc->thr = thr; /* send work request to workio thread */ if (!tq_push(thr_info[work_thr_id].q, wc)) { workio_cmd_free(wc); return false; } /* wait for response, a unit of work */ work_heap = tq_pop(thr->q, NULL); if (!work_heap) return false; /* copy returned work into storage provided by caller */ memcpy(work, work_heap, sizeof(*work)); free(work_heap); return true; } static bool submit_work(struct thr_info *thr, const struct work *work_in) { struct workio_cmd *wc; /* fill out work request message */ wc = calloc(1, sizeof(*wc)); if (!wc) return false; wc->u.work = malloc(sizeof(*work_in)); if (!wc->u.work) goto err_out; wc->cmd = WC_SUBMIT_WORK; wc->thr = thr; work_copy(wc->u.work, work_in); /* send solution to workio thread */ if (!tq_push(thr_info[work_thr_id].q, wc)) goto err_out; return true; err_out: workio_cmd_free(wc); return false; } static void stratum_gen_work(struct stratum_ctx *sctx, struct work *work) { unsigned char merkle_root[64]; int i; pthread_mutex_lock(&sctx->work_lock); free(work->job_id); work->job_id = strdup(sctx->job.job_id); work->xnonce2_len = sctx->xnonce2_size; work->xnonce2 = realloc(work->xnonce2, sctx->xnonce2_size); memcpy(work->xnonce2, sctx->job.xnonce2, sctx->xnonce2_size); /* Generate merkle root */ sha256d(merkle_root, sctx->job.coinbase, sctx->job.coinbase_size); for (i = 0; i < sctx->job.merkle_count; i++) { memcpy(merkle_root + 32, sctx->job.merkle[i], 32); sha256d(merkle_root, merkle_root, 64); } /* Increment extranonce2 */ for (i = 0; i < sctx->xnonce2_size && !++sctx->job.xnonce2[i]; i++); /* Assemble block header */ memset(work->data, 0, 128); work->data[0] = le32dec(sctx->job.version); for (i = 0; i < 8; i++) work->data[1 + i] = le32dec((uint32_t *)sctx->job.prevhash + i); for (i = 0; i < 8; i++) work->data[9 + i] = be32dec((uint32_t *)merkle_root + i); work->data[17] = le32dec(sctx->job.ntime); work->data[18] = le32dec(sctx->job.nbits); work->data[20] = 0x80000000; work->data[31] = 0x00000280; pthread_mutex_unlock(&sctx->work_lock); if (opt_debug) { char *xnonce2str = abin2hex(work->xnonce2, work->xnonce2_len); applog(LOG_DEBUG, "DEBUG: job_id='%s' extranonce2=%s ntime=%08x", work->job_id, xnonce2str, swab32(work->data[17])); free(xnonce2str); } if (opt_algo == ALGO_SCRYPT) diff_to_target(work->target, sctx->job.diff / 65536.0); else diff_to_target(work->target, sctx->job.diff); } static void *miner_thread(void *userdata) { struct thr_info *mythr = userdata; int thr_id = mythr->id; struct work work = {{0}}; uint32_t max_nonce; uint32_t end_nonce = 0xffffffffU / opt_n_threads * (thr_id + 1) - 0x20; unsigned char *scratchbuf = NULL; char s[16]; int i; /* Set worker threads to nice 19 and then preferentially to SCHED_IDLE * and if that fails, then SCHED_BATCH. No need for this to be an * error if it fails */ if (!opt_benchmark) { setpriority(PRIO_PROCESS, 0, 19); drop_policy(); } /* Cpu affinity only makes sense if the number of threads is a multiple * of the number of CPUs */ if (num_processors > 1 && opt_n_threads % num_processors == 0) { if (!opt_quiet) applog(LOG_INFO, "Binding thread %d to cpu %d", thr_id, thr_id % num_processors); affine_to_cpu(thr_id, thr_id % num_processors); } if (opt_algo == ALGO_SCRYPT) { scratchbuf = scrypt_buffer_alloc(opt_scrypt_n); if (!scratchbuf) { applog(LOG_ERR, "scrypt buffer allocation failed"); pthread_mutex_lock(&applog_lock); exit(1); } } while (1) { unsigned long hashes_done; struct timeval tv_start, tv_end, diff; int64_t max64; int rc; if (have_stratum) { while (time(NULL) >= g_work_time + 120) sleep(1); pthread_mutex_lock(&g_work_lock); if (work.data[19] >= end_nonce && !memcmp(work.data, g_work.data, 76)) stratum_gen_work(&stratum, &g_work); } else { int min_scantime = have_longpoll ? LP_SCANTIME : opt_scantime; /* obtain new work from internal workio thread */ pthread_mutex_lock(&g_work_lock); if (!have_stratum && (time(NULL) - g_work_time >= min_scantime || work.data[19] >= end_nonce)) { work_free(&g_work); if (unlikely(!get_work(mythr, &g_work))) { applog(LOG_ERR, "work retrieval failed, exiting " "mining thread %d", mythr->id); pthread_mutex_unlock(&g_work_lock); goto out; } g_work_time = have_stratum ? 0 : time(NULL); } if (have_stratum) { pthread_mutex_unlock(&g_work_lock); continue; } } if (memcmp(work.data, g_work.data, 76)) { work_free(&work); work_copy(&work, &g_work); work.data[19] = 0xffffffffU / opt_n_threads * thr_id; } else work.data[19]++; pthread_mutex_unlock(&g_work_lock); work_restart[thr_id].restart = 0; /* adjust max_nonce to meet target scan time */ if (have_stratum) max64 = LP_SCANTIME; else max64 = g_work_time + (have_longpoll ? LP_SCANTIME : opt_scantime) - time(NULL); max64 *= thr_hashrates[thr_id]; if (max64 <= 0) { switch (opt_algo) { case ALGO_SCRYPT: max64 = opt_scrypt_n < 16 ? 0x3ffff : 0x3fffff / opt_scrypt_n; break; case ALGO_SHA256D: max64 = 0x1fffff; break; } } if (work.data[19] + max64 > end_nonce) max_nonce = end_nonce; else max_nonce = work.data[19] + max64; hashes_done = 0; gettimeofday(&tv_start, NULL); /* scan nonces for a proof-of-work hash */ switch (opt_algo) { case ALGO_SCRYPT: rc = scanhash_scrypt(thr_id, work.data, scratchbuf, work.target, max_nonce, &hashes_done, opt_scrypt_n); break; case ALGO_SHA256D: rc = scanhash_sha256d(thr_id, work.data, work.target, max_nonce, &hashes_done); break; default: /* should never happen */ goto out; } /* record scanhash elapsed time */ gettimeofday(&tv_end, NULL); timeval_subtract(&diff, &tv_end, &tv_start); if (diff.tv_usec || diff.tv_sec) { pthread_mutex_lock(&stats_lock); thr_hashrates[thr_id] = hashes_done / (diff.tv_sec + 1e-6 * diff.tv_usec); pthread_mutex_unlock(&stats_lock); } if (!opt_quiet) { sprintf(s, thr_hashrates[thr_id] >= 1e6 ? "%.0f" : "%.2f", 1e-3 * thr_hashrates[thr_id]); applog(LOG_INFO, "thread %d: %lu hashes, %s khash/s", thr_id, hashes_done, s); } if (opt_benchmark && thr_id == opt_n_threads - 1) { double hashrate = 0.; for (i = 0; i < opt_n_threads && thr_hashrates[i]; i++) hashrate += thr_hashrates[i]; if (i == opt_n_threads) { sprintf(s, hashrate >= 1e6 ? "%.0f" : "%.2f", 1e-3 * hashrate); applog(LOG_INFO, "Total: %s khash/s", s); } } /* if nonce found, submit work */ if (rc && !opt_benchmark && !submit_work(mythr, &work)) break; } out: tq_freeze(mythr->q); return NULL; } static void restart_threads(void) { int i; for (i = 0; i < opt_n_threads; i++) work_restart[i].restart = 1; } static void *longpoll_thread(void *userdata) { struct thr_info *mythr = userdata; CURL *curl = NULL; char *copy_start, *hdr_path = NULL, *lp_url = NULL; bool need_slash = false; curl = curl_easy_init(); if (unlikely(!curl)) { applog(LOG_ERR, "CURL initialization failed"); goto out; } start: hdr_path = tq_pop(mythr->q, NULL); if (!hdr_path) goto out; /* full URL */ if (strstr(hdr_path, "://")) { lp_url = hdr_path; hdr_path = NULL; } /* absolute path, on current server */ else { copy_start = (*hdr_path == '/') ? (hdr_path + 1) : hdr_path; if (rpc_url[strlen(rpc_url) - 1] != '/') need_slash = true; lp_url = malloc(strlen(rpc_url) + strlen(copy_start) + 2); if (!lp_url) goto out; sprintf(lp_url, "%s%s%s", rpc_url, need_slash ? "/" : "", copy_start); } applog(LOG_INFO, "Long-polling activated for %s", lp_url); while (1) { json_t *val, *res, *soval; char *req = NULL; int err; if (have_gbt) { req = malloc(strlen(gbt_lp_req) + strlen(lp_id) + 1); sprintf(req, gbt_lp_req, lp_id); } val = json_rpc_call(curl, lp_url, rpc_userpass, req ? req : getwork_req, &err, JSON_RPC_LONGPOLL); free(req); if (have_stratum) { if (val) json_decref(val); goto out; } if (likely(val)) { bool rc; applog(LOG_INFO, "LONGPOLL pushed new work"); res = json_object_get(val, "result"); soval = json_object_get(res, "submitold"); submit_old = soval ? json_is_true(soval) : false; pthread_mutex_lock(&g_work_lock); work_free(&g_work); if (have_gbt) rc = gbt_work_decode(res, &g_work); else rc = work_decode(res, &g_work); if (rc) { time(&g_work_time); restart_threads(); } pthread_mutex_unlock(&g_work_lock); json_decref(val); } else { pthread_mutex_lock(&g_work_lock); g_work_time -= LP_SCANTIME; pthread_mutex_unlock(&g_work_lock); if (err == CURLE_OPERATION_TIMEDOUT) { restart_threads(); } else { have_longpoll = false; restart_threads(); free(hdr_path); free(lp_url); lp_url = NULL; sleep(opt_fail_pause); goto start; } } } out: free(hdr_path); free(lp_url); tq_freeze(mythr->q); if (curl) curl_easy_cleanup(curl); return NULL; } static bool stratum_handle_response(char *buf) { json_t *val, *err_val, *res_val, *id_val; json_error_t err; bool ret = false; val = JSON_LOADS(buf, &err); if (!val) { applog(LOG_INFO, "JSON decode failed(%d): %s", err.line, err.text); goto out; } res_val = json_object_get(val, "result"); err_val = json_object_get(val, "error"); id_val = json_object_get(val, "id"); if (!id_val || json_is_null(id_val) || !res_val) goto out; share_result(json_is_true(res_val), err_val ? json_string_value(json_array_get(err_val, 1)) : NULL); ret = true; out: if (val) json_decref(val); return ret; } static void *stratum_thread(void *userdata) { struct thr_info *mythr = userdata; char *s; stratum.url = tq_pop(mythr->q, NULL); if (!stratum.url) goto out; applog(LOG_INFO, "Starting Stratum on %s", stratum.url); while (1) { int failures = 0; while (!stratum.curl) { pthread_mutex_lock(&g_work_lock); g_work_time = 0; pthread_mutex_unlock(&g_work_lock); restart_threads(); if (!stratum_connect(&stratum, stratum.url) || !stratum_subscribe(&stratum) || !stratum_authorize(&stratum, rpc_user, rpc_pass)) { stratum_disconnect(&stratum); if (opt_retries >= 0 && ++failures > opt_retries) { applog(LOG_ERR, "...terminating workio thread"); tq_push(thr_info[work_thr_id].q, NULL); goto out; } applog(LOG_ERR, "...retry after %d seconds", opt_fail_pause); sleep(opt_fail_pause); } } if (stratum.job.job_id && (!g_work_time || strcmp(stratum.job.job_id, g_work.job_id))) { pthread_mutex_lock(&g_work_lock); stratum_gen_work(&stratum, &g_work); time(&g_work_time); pthread_mutex_unlock(&g_work_lock); if (stratum.job.clean) { applog(LOG_INFO, "Stratum requested work restart"); restart_threads(); } } if (!stratum_socket_full(&stratum, 120)) { applog(LOG_ERR, "Stratum connection timed out"); s = NULL; } else s = stratum_recv_line(&stratum); if (!s) { stratum_disconnect(&stratum); applog(LOG_ERR, "Stratum connection interrupted"); continue; } if (!stratum_handle_method(&stratum, s)) stratum_handle_response(s); free(s); } out: return NULL; } static void show_version_and_exit(void) { printf(PACKAGE_STRING "\n built on " __DATE__ "\n features:" #if defined(USE_ASM) && defined(__i386__) " i386" #endif #if defined(USE_ASM) && defined(__x86_64__) " x86_64" " PHE" #endif #if defined(USE_ASM) && (defined(__i386__) || defined(__x86_64__)) " SSE2" #endif #if defined(__x86_64__) && defined(USE_AVX) " AVX" #endif #if defined(__x86_64__) && defined(USE_AVX2) " AVX2" #endif #if defined(__x86_64__) && defined(USE_XOP) " XOP" #endif #if defined(USE_ASM) && defined(__arm__) && defined(__APCS_32__) " ARM" #if defined(__ARM_ARCH_5E__) || defined(__ARM_ARCH_5TE__) || \ defined(__ARM_ARCH_5TEJ__) || defined(__ARM_ARCH_6__) || \ defined(__ARM_ARCH_6J__) || defined(__ARM_ARCH_6K__) || \ defined(__ARM_ARCH_6M__) || defined(__ARM_ARCH_6T2__) || \ defined(__ARM_ARCH_6Z__) || defined(__ARM_ARCH_6ZK__) || \ defined(__ARM_ARCH_7__) || \ defined(__ARM_ARCH_7A__) || defined(__ARM_ARCH_7R__) || \ defined(__ARM_ARCH_7M__) || defined(__ARM_ARCH_7EM__) " ARMv5E" #endif #if defined(__ARM_NEON__) " NEON" #endif #endif #if defined(USE_ASM) && (defined(__powerpc__) || defined(__ppc__) || defined(__PPC__)) " PowerPC" #if defined(__ALTIVEC__) " AltiVec" #endif #endif "\n"); printf("%s\n", curl_version()); #ifdef JANSSON_VERSION printf("libjansson %s\n", JANSSON_VERSION); #endif exit(0); } static void show_usage_and_exit(int status) { if (status) fprintf(stderr, "Try `" PROGRAM_NAME " --help' for more information.\n"); else printf(usage); exit(status); } static void strhide(char *s) { if (*s) *s++ = 'x'; while (*s) *s++ = '\0'; } static void parse_config(json_t *config, char *pname, char *ref); static void parse_arg(int key, char *arg, char *pname) { char *p; int v, i; switch(key) { case 'a': for (i = 0; i < ARRAY_SIZE(algo_names); i++) { v = strlen(algo_names[i]); if (!strncmp(arg, algo_names[i], v)) { if (arg[v] == '\0') { opt_algo = i; break; } if (arg[v] == ':' && i == ALGO_SCRYPT) { char *ep; v = strtol(arg+v+1, &ep, 10); if (*ep || v & (v-1) || v < 2) continue; opt_algo = i; opt_scrypt_n = v; break; } } } if (i == ARRAY_SIZE(algo_names)) { fprintf(stderr, "%s: unknown algorithm -- '%s'\n", pname, arg); show_usage_and_exit(1); } break; case 'B': opt_background = true; break; case 'c': { json_error_t err; json_t *config = JSON_LOAD_FILE(arg, &err); if (!json_is_object(config)) { if (err.line < 0) fprintf(stderr, "%s: %s\n", pname, err.text); else fprintf(stderr, "%s: %s:%d: %s\n", pname, arg, err.line, err.text); exit(1); } parse_config(config, pname, arg); json_decref(config); break; } case 'q': opt_quiet = true; break; case 'D': opt_debug = true; break; case 'p': free(rpc_pass); rpc_pass = strdup(arg); strhide(arg); break; case 'P': opt_protocol = true; break; case 'r': v = atoi(arg); if (v < -1 || v > 9999) /* sanity check */ show_usage_and_exit(1); opt_retries = v; break; case 'R': v = atoi(arg); if (v < 1 || v > 9999) /* sanity check */ show_usage_and_exit(1); opt_fail_pause = v; break; case 's': v = atoi(arg); if (v < 1 || v > 9999) /* sanity check */ show_usage_and_exit(1); opt_scantime = v; break; case 'T': v = atoi(arg); if (v < 1 || v > 99999) /* sanity check */ show_usage_and_exit(1); opt_timeout = v; break; case 't': v = atoi(arg); if (v < 1 || v > 9999) /* sanity check */ show_usage_and_exit(1); opt_n_threads = v; break; case 'u': free(rpc_user); rpc_user = strdup(arg); break; case 'o': { /* --url */ char *ap, *hp; ap = strstr(arg, "://"); ap = ap ? ap + 3 : arg; hp = strrchr(arg, '@'); if (hp) { *hp = '\0'; p = strchr(ap, ':'); if (p) { free(rpc_userpass); rpc_userpass = strdup(ap); free(rpc_user); rpc_user = calloc(p - ap + 1, 1); strncpy(rpc_user, ap, p - ap); free(rpc_pass); rpc_pass = strdup(++p); if (*p) *p++ = 'x'; v = strlen(hp + 1) + 1; memmove(p + 1, hp + 1, v); memset(p + v, 0, hp - p); hp = p; } else { free(rpc_user); rpc_user = strdup(ap); } *hp++ = '@'; } else hp = ap; if (ap != arg) { if (strncasecmp(arg, "http://", 7) && strncasecmp(arg, "https://", 8) && strncasecmp(arg, "stratum+tcp://", 14) && strncasecmp(arg, "stratum+tcps://", 15)) { fprintf(stderr, "%s: unknown protocol -- '%s'\n", pname, arg); show_usage_and_exit(1); } free(rpc_url); rpc_url = strdup(arg); strcpy(rpc_url + (ap - arg), hp); } else { if (*hp == '\0' || *hp == '/') { fprintf(stderr, "%s: invalid URL -- '%s'\n", pname, arg); show_usage_and_exit(1); } free(rpc_url); rpc_url = malloc(strlen(hp) + 8); sprintf(rpc_url, "http://%s", hp); } have_stratum = !opt_benchmark && !strncasecmp(rpc_url, "stratum", 7); break; } case 'O': /* --userpass */ p = strchr(arg, ':'); if (!p) { fprintf(stderr, "%s: invalid username:password pair -- '%s'\n", pname, arg); show_usage_and_exit(1); } free(rpc_userpass); rpc_userpass = strdup(arg); free(rpc_user); rpc_user = calloc(p - arg + 1, 1); strncpy(rpc_user, arg, p - arg); free(rpc_pass); rpc_pass = strdup(++p); strhide(p); break; case 'x': /* --proxy */ if (!strncasecmp(arg, "socks4://", 9)) opt_proxy_type = CURLPROXY_SOCKS4; else if (!strncasecmp(arg, "socks5://", 9)) opt_proxy_type = CURLPROXY_SOCKS5; #if LIBCURL_VERSION_NUM >= 0x071200 else if (!strncasecmp(arg, "socks4a://", 10)) opt_proxy_type = CURLPROXY_SOCKS4A; else if (!strncasecmp(arg, "socks5h://", 10)) opt_proxy_type = CURLPROXY_SOCKS5_HOSTNAME; #endif else opt_proxy_type = CURLPROXY_HTTP; free(opt_proxy); opt_proxy = strdup(arg); break; case 1001: free(opt_cert); opt_cert = strdup(arg); break; case 1005: opt_benchmark = true; want_longpoll = false; want_stratum = false; have_stratum = false; break; case 1003: want_longpoll = false; break; case 1007: want_stratum = false; break; case 1009: opt_redirect = false; break; case 1010: allow_getwork = false; break; case 1011: have_gbt = false; break; case 1013: /* --coinbase-addr */ pk_script_size = address_to_script(pk_script, sizeof(pk_script), arg); if (!pk_script_size) { fprintf(stderr, "%s: invalid address -- '%s'\n", pname, arg); show_usage_and_exit(1); } break; case 1015: /* --coinbase-sig */ if (strlen(arg) + 1 > sizeof(coinbase_sig)) { fprintf(stderr, "%s: coinbase signature too long\n", pname); show_usage_and_exit(1); } strcpy(coinbase_sig, arg); break; case 'S': use_syslog = true; break; case 'V': show_version_and_exit(); case 'h': show_usage_and_exit(0); default: show_usage_and_exit(1); } } static void parse_config(json_t *config, char *pname, char *ref) { int i; char *s; json_t *val; for (i = 0; i < ARRAY_SIZE(options); i++) { if (!options[i].name) break; val = json_object_get(config, options[i].name); if (!val) continue; if (options[i].has_arg && json_is_string(val)) { if (!strcmp(options[i].name, "config")) { fprintf(stderr, "%s: %s: option '%s' not allowed here\n", pname, ref, options[i].name); exit(1); } s = strdup(json_string_value(val)); if (!s) break; parse_arg(options[i].val, s, pname); free(s); } else if (!options[i].has_arg && json_is_true(val)) { parse_arg(options[i].val, "", pname); } else { fprintf(stderr, "%s: invalid argument for option '%s'\n", pname, options[i].name); exit(1); } } } static void parse_cmdline(int argc, char *argv[]) { int key; while (1) { #if HAVE_GETOPT_LONG key = getopt_long(argc, argv, short_options, options, NULL); #else key = getopt(argc, argv, short_options); #endif if (key < 0) break; parse_arg(key, optarg, argv[0]); } if (optind < argc) { fprintf(stderr, "%s: unsupported non-option argument -- '%s'\n", argv[0], argv[optind]); show_usage_and_exit(1); } } #ifndef WIN32 static void signal_handler(int sig) { switch (sig) { case SIGHUP: applog(LOG_INFO, "SIGHUP received"); break; case SIGINT: applog(LOG_INFO, "SIGINT received, exiting"); exit(0); break; case SIGTERM: applog(LOG_INFO, "SIGTERM received, exiting"); exit(0); break; } } #endif int main(int argc, char *argv[]) { struct thr_info *thr; long flags; int i; rpc_user = strdup(""); rpc_pass = strdup(""); /* parse command line */ parse_cmdline(argc, argv); if (!opt_benchmark && !rpc_url) { fprintf(stderr, "%s: no URL supplied\n", argv[0]); show_usage_and_exit(1); } if (!rpc_userpass) { rpc_userpass = malloc(strlen(rpc_user) + strlen(rpc_pass) + 2); if (!rpc_userpass) return 1; sprintf(rpc_userpass, "%s:%s", rpc_user, rpc_pass); } pthread_mutex_init(&applog_lock, NULL); pthread_mutex_init(&stats_lock, NULL); pthread_mutex_init(&g_work_lock, NULL); pthread_mutex_init(&stratum.sock_lock, NULL); pthread_mutex_init(&stratum.work_lock, NULL); flags = opt_benchmark || (strncasecmp(rpc_url, "https://", 8) && strncasecmp(rpc_url, "stratum+tcps://", 15)) ? (CURL_GLOBAL_ALL & ~CURL_GLOBAL_SSL) : CURL_GLOBAL_ALL; if (curl_global_init(flags)) { applog(LOG_ERR, "CURL initialization failed"); return 1; } #ifndef WIN32 if (opt_background) { i = fork(); if (i < 0) exit(1); if (i > 0) exit(0); i = setsid(); if (i < 0) applog(LOG_ERR, "setsid() failed (errno = %d)", errno); i = chdir("/"); if (i < 0) applog(LOG_ERR, "chdir() failed (errno = %d)", errno); signal(SIGHUP, signal_handler); signal(SIGINT, signal_handler); signal(SIGTERM, signal_handler); } #endif #if defined(WIN32) SYSTEM_INFO sysinfo; GetSystemInfo(&sysinfo); num_processors = sysinfo.dwNumberOfProcessors; #elif defined(_SC_NPROCESSORS_CONF) num_processors = sysconf(_SC_NPROCESSORS_CONF); #elif defined(CTL_HW) && defined(HW_NCPU) int req[] = { CTL_HW, HW_NCPU }; size_t len = sizeof(num_processors); sysctl(req, 2, &num_processors, &len, NULL, 0); #else num_processors = 1; #endif if (num_processors < 1) num_processors = 1; if (!opt_n_threads) opt_n_threads = num_processors; #ifdef HAVE_SYSLOG_H if (use_syslog) openlog("cpuminer", LOG_PID, LOG_USER); #endif work_restart = calloc(opt_n_threads, sizeof(*work_restart)); if (!work_restart) return 1; thr_info = calloc(opt_n_threads + 3, sizeof(*thr)); if (!thr_info) return 1; thr_hashrates = (double *) calloc(opt_n_threads, sizeof(double)); if (!thr_hashrates) return 1; /* init workio thread info */ work_thr_id = opt_n_threads; thr = &thr_info[work_thr_id]; thr->id = work_thr_id; thr->q = tq_new(); if (!thr->q) return 1; /* start work I/O thread */ if (pthread_create(&thr->pth, NULL, workio_thread, thr)) { applog(LOG_ERR, "workio thread create failed"); return 1; } if (want_longpoll && !have_stratum) { /* init longpoll thread info */ longpoll_thr_id = opt_n_threads + 1; thr = &thr_info[longpoll_thr_id]; thr->id = longpoll_thr_id; thr->q = tq_new(); if (!thr->q) return 1; /* start longpoll thread */ if (unlikely(pthread_create(&thr->pth, NULL, longpoll_thread, thr))) { applog(LOG_ERR, "longpoll thread create failed"); return 1; } } if (want_stratum) { /* init stratum thread info */ stratum_thr_id = opt_n_threads + 2; thr = &thr_info[stratum_thr_id]; thr->id = stratum_thr_id; thr->q = tq_new(); if (!thr->q) return 1; /* start stratum thread */ if (unlikely(pthread_create(&thr->pth, NULL, stratum_thread, thr))) { applog(LOG_ERR, "stratum thread create failed"); return 1; } if (have_stratum) tq_push(thr_info[stratum_thr_id].q, strdup(rpc_url)); } /* start mining threads */ for (i = 0; i < opt_n_threads; i++) { thr = &thr_info[i]; thr->id = i; thr->q = tq_new(); if (!thr->q) return 1; if (unlikely(pthread_create(&thr->pth, NULL, miner_thread, thr))) { applog(LOG_ERR, "thread %d create failed", i); return 1; } } applog(LOG_INFO, "%d miner threads started, " "using '%s' algorithm.", opt_n_threads, algo_names[opt_algo]); /* main loop - simply wait for workio thread to exit */ pthread_join(thr_info[work_thr_id].pth, NULL); applog(LOG_INFO, "workio thread dead, exiting."); return 0; }